- All sections
- H - Electricity
- H01L - Semiconductor devices not covered by class
- H01L 41/04 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof - Details of piezo-electric or electrostrictive elements
Patent holdings for IPC class H01L 41/04
Total number of patents in this class: 1224
10-year publication summary
|
126
|
164
|
162
|
136
|
97
|
52
|
16
|
5
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 20528 |
91 |
| Murata Manufacturing Co., Ltd. | 25981 |
75 |
| Koninklijke Philips N.V. | 26073 |
47 |
| Canon Inc. | 44414 |
35 |
| Robert Bosch GmbH | 44363 |
30 |
| TDK Electronics AG | 1019 |
21 |
| Continental Automotive GmbH | 4417 |
18 |
| FUJIFILM Corporation | 30774 |
17 |
| TDK Corporation | 7039 |
16 |
| Kyocera Corporation | 14479 |
15 |
| Boe Technology Group Co., Ltd. | 44784 |
15 |
| Texas Instruments Incorporated | 19622 |
14 |
| Brother Industries, Ltd. | 12856 |
14 |
| Epcos AG | 631 |
11 |
| Ricoh Company, Ltd. | 13407 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 34568 |
10 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11136 |
10 |
| Taiyo Yuden Co., Ltd. | 2061 |
9 |
| Vitesco Technologies GmbH | 2397 |
9 |
| Qualcomm Incorporated | 93712 |
8 |
| Other owners | 749 |